Calculation of Subgrade Moisture Index in Seasonally Frozen Regions considering Evapotranspiration at Subzero Temperatures and the Pavement Coverage Effect

Table 3

PE calculation process.

Month	es	Δ	ea	Rn	γ	u2	PE (cm)
1	0.25	0.02	0.15	2.60	0.07	1.94	1.37
2	0.35	0.02	0.19	2.56	0.07	2.09	2.21
3	0.62	0.04	0.33	8.31	0.07	2.17	4.97
4	1.16	0.07	0.64	8.34	0.07	2.32	8.55
5	1.77	0.10	1.06	12.34	0.07	2.09	11.76
6	2.24	0.13	1.68	11.99	0.07	1.80	10.91
7	2.77	0.16	2.19	11.26	0.07	1.65	11.44
8	2.75	0.16	2.20	11.38	0.07	1.35	10.25
9	1.89	0.11	1.46	6.75	0.07	1.20	7.03
10	1.89	0.11	1.27	6.37	0.07	1.57	6.36
11	0.57	0.04	0.35	1.16	0.07	1.87	2.44
12	0.31	0.02	0.19	1.35	0.07	1.87	1.40